Free delivery over £499.99 · Rated 4.7 out of 5 stars on Trustpilot 4.7
Flooring King
8 products

UltraFloor Screeds

Browse UltraFloor screeds and smoothing compounds by job type, and check the permitted layer depth before you work out the quantity for your floor. Use our floor smoothing compounds and primers range to compare the choices for your planned floor, then check the exact product reference before you place your order.

Tell us your room size
Room name
Measurement type
Area
W x L
Width
Length
Area
Showing prices for
Your saved rooms
or to keep your rooms saved
Chat with King
All filters
Refine your search across 8 products. Changes apply live.
8 products
2,445 verified reviews

Why homeowners pick Flooring King.

4.7
out of 5
Rated 4.7 out of 5 stars on Trustpilot Trustpilot · Excellent
Rated 5.0 out of 5 stars on Trustpilot
“Quickstep laminate”
Great price and excellent service
John
Verified order
Rated 5.0 out of 5 stars on Trustpilot
“Flooring…made easy”
My second time buying from Flooring King and I highly recommend them for all flooring needs. Huge selection of products and colour choices, fast delivery and competitive prices I fitted the entire downstairs of my house (myself) using the Polyflor rigid core…
Ben H.
Verified order
Rated 5.0 out of 5 stars on Trustpilot
“5 Star seller”
5 Star seller, many thanks!
Damian
Verified order

About UltraFloor Screeds

UltraFloor Screeds is a selection of preparation materials for the surface below a finished floor; the exact compound determines its permitted depth and intended use, with the product remaining hidden beneath the covering after the work is complete.

You may want a thin resilient floor or a board finish in the room, but each relies on a base that meets its own requirements; a suitable smoothing material forms part of that preparation. The named range identifies a group of products, while the individual specification defines the job each material can do.

Some compounds have a role in local repair, while others are intended for a wider smoothing layer; you may see different products from the same maker because one formulation does not cover every base or depth. The chosen compound’s limits define the type of preparation it can provide beneath the finished surface.

You can browse floor smoothing compounds and primers within our wider flooring selection.

What are floor smoothing compounds

Floor smoothing compounds form a prepared surface beneath a floor covering. They are used within their stated depth range to improve the base for the next part of the floor build. The material remains below the visible finish, rather than forming the decorative surface of the room.

The word screed is used for different products in flooring, from deeper floor layers to thinner smoothing materials; the exact product description establishes its role. You may see bagged compounds with their own mixing system and stated uses for particular types of base.

A smooth base beneath your floor

A thin floor covering can reveal uneven detail beneath it, while a board floor has its own requirements for the flatness of the base; a suitable smoothing layer helps form the surface that the chosen finish needs.

The required depth differs between a small local change in level and a broader area of uneven floor. Each compound has limits for the thickness at which it can be used. Those limits are part of the product design, so a deeper application is not always a better use of the same material.

You can also find floor primers among the related products across the Flooring King catalogue.

Compounds within a flooring system

The compound and the base need to be compatible, and some systems include a primer beneath the smoothing layer; a moisture-control product may also have a place in the build where the recorded conditions require it. Each material has a separate role.

A compound is not a substitute for a sound structure beneath the floor; the prepared surface depends on the condition of the base as well as the material applied to it. You can have the same visible floor above different preparation systems, but their hidden layers need to work together.

Drying times and material quantities

Bag size describes the amount of material supplied, while coverage depends on the area and the thickness of the layer; a deeper layer uses more material over the same floor area. Coverage figures therefore relate to a stated depth.

The time before a floor covering can be fitted is also specific to the compound and the room conditions. Being firm enough to walk on is not always the same as being ready for the chosen finish. The technical data distinguishes those stages. The final covering sits above the prepared surface.

King
King Beta This assistant is in beta and may occasionally provide inaccurate information. Online · replies instantly
How can we help you
find your floor?
 free samples picked
Rate this conversation
Try again in
Private — never shared Powered by Flooring King
You qualify for free delivery
Subtotal
Delivery
Total
View full basket page
/3 free samples added
How it works
  1. 1
    You pick three
    Up to 3 free per household.
  2. 2
    We post them tomorrow
    Royal Mail 1st class, free.
  3. 3
    No obligation
    Order the floors you love, or don't.
Order sample box — Free
Added to your basket

Finish the job

Fitters recommend these to complete your order.

Total
SHOP BY CATEGORY
POPULAR SEARCHES

Welcome Back

To login please enter your details below.

Don't have an account?

Sign up

Enter your details below to get started.

Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.

Already have an account?